Custom CNC Turning Services

How it works with CNC Turning

Design (CAD): Engineers create a 3D digital model of the part using Computer-Aided Design software.

Programming (CAM): The CAD model is translated into G-code instructions that the machine tool can understand, using Computer-Aided Manufacturing software. This process involves setting critical parameters like tool paths, cutting speeds, and feed rates.

Setup: The operator mounts the workpiece, installs the cutting tools on the machine, and loads or calls up the machining program.

Execution & Monitoring: The CNC system interprets the G-code, precisely controlling the movement of the machine’s axes and auxiliary functions (e.g., coolant, tool changes) to complete the cutting automatically. The operator monitors the process to ensure stability.

Completion: After machining, the part is removed for necessary post-processing (e.g., deburring, surface treatment) and quality inspection.

Common operation types in CNC turning

· Cylindrical turning: Processing diameter dimensions

· End face turning: Ensure length and flatness

· Inner hole processing: Boring/drilling

· Conical surface turning: Adjust the tool Angle or program

· Thread turning: Multi-pass gradual forming

· Slotting/cutting: Radial feed cutting

Quality assurance measures

1.Precision control

· Dimensional tolerance: ±0.01mm (standard)

· Roundness: ≤ 0.005mm

· Surface roughness: Ra 0.8-1.6μm (fine turning)

2. Process monitoring

· Tool wear inspection (each batch /4 hours)

· Size spot check (2-3 pieces per hour)

Core Advantages of CNC Turning

1. Outstanding precision and repeatability

It can stably achieve micron-level tolerance, ensuring the consistency of each part in mass production.

2. High productivity

 Automated tool changing, continuous processing and high-speed cutting capabilities significantly reduce the production time per piece.

3. Complex geometric forming capabilities

 It can not only process simple cylinders, but also complete complex curved surfaces, threads, grooves and eccentric features through programming.

4. Excellent surface quality

By optimizing cutting parameters, high-quality surface finish can be directly achieved, reducing subsequent grinding processes.

5. High material utilization rate

It belongs to subtractive manufacturing, but by optimizing the tool path and near-net-shape forming blanks, material waste can be effectively reduced.

6. Flexibility and rapid conversion

By changing programs and fixtures, it is possible to quickly switch between different parts production, making it suitable for flexible production in medium and small batches.

Why Choose ANXIN for CNC Turning

1.Uncompromising precision and consistent quality control

· Full-process control: From raw material incoming inspection, first piece full-size report (FAI) to SPC statistical process control during production, we ensure that every product perfectly meets the requirements of the drawings.

· Advanced inspection equipment: Equipped with a three-coordinate measuring machine (CMM), roundness tester and surface roughness tester, ensuring quality with data rather than intuition.

2.Profound technical expertise and engineering support

· Free Manufacturability Design (DFM) analysis: Before production starts, our engineers will proactively review your design and offer optimization suggestions to enhance performance, reduce costs and shorten delivery times.

· Materials and Processes Expert: Whether it’s common aluminum alloys, stainless steel, or difficult-to-machine titanium alloys and superalloys, we have a mature process database to ensure the best results.

3.Flexible and efficient services and transparent communication

· From 1 piece to 10,000 pieces: Whether it’s product prototype verification, small-batch trial production or large-scale production, we can provide the most cost-effective flexible solutions.

· Quick response and clear nodes: A dedicated account manager ensures that your questions are answered promptly, and through transparent project tracking, you can always keep track of the progress.

· Integrated post-treatment services: We offer one-stop solutions, including heat treatment, anodizing, electroplating, sandblasting and other surface treatments, to simplify your supply chain.

Material Selection Decision on CNC Turning

AT offers a wide variety of materials for custom CNC machining,  plastic, and metal, including but not limited to:

Aluminum: 6061-T6, 7075-T6, 2024, 5052, 6060, 5083, 2017, 6082

Aluminum’s strength-to-weight ratio, affordability, and recyclability have made it widely used across industries worldwide.

Stainless Steel/Alloy Steel/Tool Steel/Brass/Copper/Titanium

Finishing Options: Anodizing Types II, III, III + PTFE, ENP, Media Blasting, Nickel Plating, Powder Coating, Tumble Polishing

POM(Delrin/Acetal): High stiffness, good moisture resistance, high wear-resistance, and low friction, easy to machine

PMMA (Acrylic):Color:(White, black, brown etc.)

PEEK: Grade: POM-C, POM-H, UV stabilized POM, Food-Grade POM

ABS/Nylon (PA)/PTFE (Teflon)/PVC

When selecting materials for CNC machining, a comprehensive trade-off is needed from three dimensions: functionality, machinability, and economy.

From the functionality requirement dimension, it is necessary to evaluate the material’s strength requirements (including static strength and dynamic fatigue strength), wear resistance requirements (often related to surface hardness), corrosion resistance (for specific working environment media), operating temperature range, and electrical properties like conductivity and thermal conductivity.

From the machinability dimension, the material’s machining difficulty level (can be divided into levels 1 to 5), tool cost index, machining efficiency coefficient, achievable surface quality, and difficulty of deformation control need to be considered.

From the economic dimension, calculations should include the cost per kilogram of the material itself, estimated machining labor hours, tool consumption costs, necessary heat treatment or other post-processing costs, and an estimation of potential scrap rates.

When matching materials to application scenarios, the following guidelines can be followed: For aerospace structural components, high specific strength materials like 7075 aluminum alloy are preferred, with titanium alloy TC4 being an excellent alternative, while stainless steel is generally not recommended due to its higher weight. For medical implants, biocompatibility is the primary consideration, making Ti-6Al-4V titanium alloy or cobalt-chromium alloys the first choice, whereas ordinary stainless steel is unsuitable. For lightweight components like optical mounts, 6061 aluminum alloy or brass are ideal choices, while carbon steel is not recommended due to weight issues. For fixtures in high-temperature environments, materials with good thermal stability must be chosen, such as Inconel high-temperature alloys or specialized heat-resistant steels; ordinary steel cannot perform this task.

CNC Turning Frequently Asked Questions (FAQs)